Camera optical lens

ABSTRACT

A camera optical lens is provided, including from an object side to an image side: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power. The camera optical lens satisfies following conditions: 0.85≤f1/f≤1.10; −3.00≤f2/f≤−1.50; −50.00≤(R5+R6)/(R5−R6)≤−5.00; 1.50≤R7/R8≤3.50; and 0.70≤d7/d8≤1.20. The above camera optical lens may meet design requirements for large aperture, wide angle and ultra-thinness, while maintaining a high imaging quality.

TECHNICAL FIELD

The present invention relates to the technical field of optical lensand, in particular, to a camera optical lens suitable for handheldterminal devices such as smart phones or digital cameras, and imagingdevices such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand for aminiature camera lens is continuously increasing, but in general,photosensitive devices of a camera lens are nothing more than a ChargeCoupled Device (CCD) or a Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor), and as progress of semiconductor manufacturing technologymakes a pixel size of the photosensitive devices become smaller, inaddition, a current development trend of electronic products requiresbetter performance with thinner and smaller dimensions, miniature cameralenses with good imaging quality therefore have become a mainstream inthe market.

In order to obtain better imaging quality, a camera lens traditionallyequipped in a camera of a mobile phone generally constitutes three orfour lenses. However, with development of technology and increase indiversified requirements of users, a camera lens constituted by fivelenses gradually appears in camera design, in case that pixel area ofthe photosensitive device is continuously reduced and requirements onimage quality is continuously increased. Although the common camera lensconstituted by five lenses already has good optical performances, itsconfigurations such as focal length, lens spacing and lens shape stillneed to be optimized, therefore the camera lens may not meet designrequirements for some optical performances such as wide angle andultra-thinness while maintaining good imaging quality.

Therefore, it is necessary to provide a camera optical lens that maymeet design requirements for wide angle and ultra-thinness whilemaintaining good imaging quality.

SUMMARY

In view of the above problems, the present invention provides a cameraoptical lens, which may meet design requirements for wide angle andultra-thinness by reasonably configuring focal length of lenses, lensspacing and lens shape.

Embodiments of the present invention provide a camera optical lens,including from an object side to an image side:

-   -   a first lens having positive refractive power;    -   a second lens having negative refractive power;    -   a third lens having positive refractive power;    -   a fourth lens having positive refractive power; and    -   a fifth lens having negative refractive power;    -   wherein the camera optical lens satisfies following conditions:    -   0.85≤f1/f≤1.10;    -   −3.00≤f2/f≤−1.50;    -   −50.00≤(R5+R6)/(R5−R6)≤−5.00;    -   1.50≤R7/R8≤3.50; and    -   0.70≤d7/d8≤1.20,    -   where    -   f denotes a total focal length of the camera optical lens,    -   f1 denotes a focal length of the first lens;    -   f2 denotes a focal length of the second lens;    -   d7 denotes an on-axis thickness of the fourth lens;    -   d8 denotes an on-axis distance from an image side surface of the        fourth lens to an object side surface of the fifth lens;    -   R5 denotes a central curvature radius of an object side surface        of the third lens;    -   R6 denotes a central curvature radius of an image side surface        of the third lens;    -   R7 denotes a central curvature radius of an object side surface        of the fourth lens; and    -   R8 denotes a central curvature radius of the image side surface        of the fourth lens.

As an improvement, the camera optical lens satisfies a followingcondition:

-   -   1.50≤(R9+R10)/(R9−R10)≤8.00,    -   where    -   R9 denotes a central curvature radius of the object side surface        of the fifth lens; and    -   R10 denotes a central curvature radius of an image side surface        of the fifth lens.

As an improvement, the camera optical lens satisfies followingconditions:

-   -   −3.50≤(R1+R2)/(R1−R2)≤−0.72; and    -   0.05≤d1/TTL≤0.19,    -   where    -   R1 denotes a central curvature radius of an object side surface        of the first lens;    -   R2 denotes a central curvature radius of an image side surface        of the first lens;    -   d1 denotes an on-axis thickness of the first lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

-   -   0.53≤(R3+R4)/(R3−R4)≤2.97; and    -   0.02≤d3/TTL≤0.08,    -   where    -   R3 denotes a central curvature radius of an object side surface        of the second lens;    -   R4 denotes a central curvature radius of an image side surface        of the second lens;    -   d3 denotes an on-axis thickness of the second lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

-   -   2.90≤f3/f≤42.35; and    -   0.03≤d5/TTL≤0.11,    -   where    -   f3 denotes a focal length of the third lens;    -   d5 denotes an on-axis thickness of the third lens; and

TTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.

As an improvement, the camera optical lens satisfies followingconditions:

-   -   0.43≤f4/f≤4.51;    -   0.90≤(R7+R8)/(R7−R8)≤7.47; and    -   0.04≤d7/TTL≤0.23,    -   where    -   f4 denotes a focal length of the fourth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies followingconditions:

-   -   −14.83≤f5/f≤−0.52; and    -   0.03≤d9/TTL≤0.21,    -   where    -   f5 denotes a focal length of the fifth lens;    -   d9 denotes an on-axis thickness of the fifth lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens satisfies a followingcondition:

-   -   TTL/IH≤1.30,    -   where    -   IH denotes an image height of the camera optical lens; and    -   TTL denotes a total optical length from an object side surface        of the first lens to an image plane of the camera optical lens        along an optic axis.

As an improvement, the camera optical lens further satisfies a followingcondition:

-   -   FOV≥85°,    -   where FOV denotes a field of view of the camera optical lens.

As an improvement, the camera optical lens further satisfies a followingcondition:

-   -   0.74≤f12/f≤2.55,    -   where f12 denotes a combined focal length of the first lens and        the second lens.

The present invention has following beneficial effects: the cameraoptical lens according to the present invention may meet designrequirements for large aperture, wide angle and ultra-thinness whilemaintaining good imaging quality, which is especially suitable formobile phone camera lens components composed of high-pixel CCD, CMOS andother imaging elements and WEB camera lens.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiments may be better understood withreference to following drawings. The components in the drawings are notnecessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present invention. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a structural schematic diagram of a camera optical lensaccording to Embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a structural schematic diagram of a camera optical lensaccording to

Embodiment 2 of the present invention;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a structural schematic diagram of a camera optical lensaccording to Embodiment 3 of the present invention;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9;

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9;

FIG. 13 is a structural schematic diagram of a camera optical lensaccording to Embodiment 4 of the present invention;

FIG. 14 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 13;

FIG. 15 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 13; and

FIG. 16 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 13.

DESCRIPTION OF EMBODIMENTS

In order to better illustrate the objectives, technical solutions andadvantages of the present invention, the present invention will bedescribed in further detail below with reference to the accompanyingdrawings and embodiments. It should be understood that the specificembodiments described herein are only used to explain the presentinvention but are not used to limit the present invention.

Embodiment 1

Referring to FIG. 1 to FIG. 4, the present invention provides a cameraoptical lens 10 according to Embodiment 1. In FIG. 1, a left side is anobject side, and a right side is an image side. The camera optical lens10 includes five lenses. The camera optical lens 10 includes, from theobject side to the image side, an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, and a fifth lens L5. Anoptical element such as an optical filter GF may be arranged between thefifth lens L5 and an image plane Si.

In this embodiment, the first lens L1, the second lens L2, the thirdlens L3, the fourth lens L4 and the fifth lens L5 are each made of aplastic material. Optionally, in other embodiments, the lenses may alsobe made of a material other than the plastic material.

In this embodiment, the first lens L1 has positive refractive power, thesecond lens L2 has negative refractive power, the third lens L3 haspositive refractive power, the fourth lens L4 has positive refractivepower, and the fifth lens L5 has negative refractive power.

In this embodiment, a total focal length of the camera optical lens 10is defined as f, a focal length of the first lens L1 is defined as f1, afocal length of the second lens L2 is defined as f2, an on-axisthickness of the fourth lens is defined as d7; an on-axis distance froman image side surface of the fourth lens to an object side surface ofthe fifth lens is defined as d8; a central curvature radius of an objectside surface of the third lens is defined as R5; a central curvatureradius of an image side surface of the third lens is defined as R6; acentral curvature radius of an object side surface of the fourth lens isdefined as R7; and a central curvature radius of the image side surfaceof the fourth lens is defined as R8. The focal length f1 and the focallength f, the focal length f2 and the focal length f, the centralcurvature radius R5 and the central curvature radius R6, the centralcurvature radius R7 and the central curvature radius R8, the on-axisthickness d7 and the on-axis distance d8 satisfy following conditions,respectively:

0.85≤f1/f≤1.10  (1);

−3.00≤f2/f≤−1.50  (2);

−50.00≤(R5+R6)/(R5−R6)≤−5.00  (3);

1.50≤R7/R8≤3.50  (4);

and

0.70≤d7/d8≤1.20  (5).

Here, the condition (1) specifies a ratio of the focal length of thefirst lens to the total focal length of the system. Within the range ofthe condition (1), it is beneficial to balance spherical aberrations andfield curvature of the system.

The condition (2) specifies a ratio of the focal length of the secondlens to the total focal length of the system. With appropriateconfiguration of the focal length, the system may obtain better imagingquality and lower sensitivity.

The condition (3) specifies a shape of the third lens. Within the rangeof the condition (3), a degree of deflection of light passing throughthe lens may be alleviated, and aberrations may be effectively reduced.

The condition (4) specifies a shape of the fourth lens. Within the rangeof the condition (4), it is beneficial to correct longitudinalaberration.

The condition (5) specifies a ratio of the thickness of the fourth lensto an air spacing between the fourth lens and the fifth lens. Within therange of the condition (5), it is beneficial to compress a total lengthof the optical system, thereby achieving an ultra-thinness effect.

A curvature radius of an object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of an image side surface of thefifth lens L5 is defined as R10. The curvature radius R9 and thecurvature radius R10 satisfy a following condition:1.50≤(R9+R10)/(R9−R10)≤8.00, which specifies a shape of the fifth lensL5. Within the range of the above condition, it is beneficial to correctaberration of off-axis angle.

In this embodiment, the object side surface of the first lens L1 isconvex in a paraxial region, and the image side surface of the firstlens L1 is concave in the paraxial region.

A central curvature radius of an object side surface of the first lensL1 is defined as R1, and a central curvature radius of an image sidesurface of the first lens L1 is defined as R2. The central curvatureradius R1 and the central curvature radius R2 satisfy a followingcondition: −3.50≤(R1+R2)/(R1−R2)≤−0.72. The shape of the first lens L1is reasonably controlled so that the first lens L1 may effectivelycorrect spherical aberration of the system. Optionally, the centralcurvature radius R1 and the central curvature radius R2 satisfy afollowing condition: −2.19≤(R1+R2)/(R1−R2)≤−0.89.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length from the object side surface of the first lens to animage plane of the camera optical lens 10 along an optic axis is definedas TTL. The on-axis thickness d1 and the total optical length TTLsatisfy a following condition: 0.05≤d1/TTL≤0.19. Within the range of thecondition, it is beneficial to achieve an ultra-thinness effect.Optionally, the on-axis thickness d1 and the total optical length TTLsatisfy a following condition: 0.08≤d1/TTL≤0.15.

In this embodiment, the object side surface of the second lens L2 isconvex in a paraxial region, and the image side surface of the secondlens L2 is concave in the paraxial region.

A central curvature radius of an object side surface of the second lensL2 is defined as R3, and a central curvature radius of an image sidesurface of the second lens L2 is defined as R4. The central curvatureradius R3 and the central curvature radius R4 satisfy a followingcondition: 0.53≤(R3+R4)/(R3−R4)≤2.97, which specifies a shape of thesecond lens L2. Within the range of the above condition, as the lensbecomes ultra-thin and wide angle, it is beneficial to correct on-axischromatic aberration. Optionally, the central curvature radius R3 andthe central curvature radius R4 satisfy a following condition:0.85≤(R3+R4)/(R3−R4)≤2.37.

An on-axis thickness of the second lens L2 is defined as d3, and a totaloptical length from the object side surface of the first lens to animage plane of the camera optical lens 10 along an optic axis is definedas TTL. The total optical length TTL and the on-axis thickness d3satisfy a following condition: 0.02≤d3/TTL≤0.08. Within the range of theabove condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the total optical length TTL and the on-axis thickness d3satisfy a following condition: 0.04≤d3/TTL≤0.06.

In this embodiment, the object side surface of the third lens L3 isconvex in a paraxial region, and the image side surface of the thirdlens L3 is concave in the paraxial region.

A focal length of the third lens L3 is defined as f3, and the totalfocal length of the camera optical lens 10 is defined as f. The focallength f and the focal length f3 satisfy a following condition:2.90≤f3/f≤42.35. With appropriate configuration of the refractive power,the camera optical lens 10 may obtain better imaging quality and lowersensitivity. Optionally, the focal length f and the focal length f3satisfy a following condition: 4.63≤f3/f≤33.88.

An on-axis thickness of the third lens L3 is defined as d5, and a totaloptical length from the object side surface of the first lens to animage plane of the camera optical lens 10 along an optic axis is definedas TTL. The total optical length TTL and the on-axis thickness d5satisfy a following condition: 0.03≤d5/TTL≤0.11. Within the range of theabove condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the total optical length TTL and the on-axis thickness d5satisfy a following condition: 0.05≤d5/TTL≤0.09.

In this embodiment, the object side surface of the fourth lens L4 isconcave in a paraxial region, and the image side surface of the fourthlens L4 is convex in the paraxial region.

A focal length of the fourth lens L4 is defined as f4, and a total focallength of the camera optical lens 10 is defined as f. The focal lengthf4 and the focal length f satisfy a following condition: 0.43≤f4/f≤4.51,which specifies a ratio of the focal length of the fourth lens to thefocal length of the system. Within the range of the above condition, itis beneficial to improve performances of the optical system. Optionally,the focal length f and the focal length f4 satisfy a followingcondition: 0.69≤f4/f≤3.61.

A curvature radius of the object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of the image side surface of thefourth lens L4 is defined as R8. The curvature radius R7 and thecurvature radius R8 satisfy a following condition:0.90≤(R7+R8)/(R7−R8)≤7.47, which specifies a shape of the fourth lensL4. Within the range of the above condition, it is beneficial to correctaberration of off-axis angle with the development of ultra-thinness andwide angle. Optionally, the curvature radius R7 and the curvature radiusR8 satisfy a following condition: 1.44≤(R7+R8)/(R7−R8)≤5.98.

An on-axis thickness of the fourth lens L4 is defined as d7, and a totaloptical length from the object side surface of the first lens to animage plane of the camera optical lens 10 along an optic axis is definedas TTL. The on-axis thickness d7 and the total optical length TTLsatisfy a following condition: 0.04≤d7/TTL≤0.23. Within the range of thecondition, it is beneficial to achieve an ultra-thinness effect.Optionally, the on-axis thickness d7 and the total optical length TTLsatisfy a following condition: 0.07≤d7/TTL≤0.18.

In this embodiment, the object side surface of the fifth lens L5 isconvex in a paraxial region, and the image side surface of the fifthlens L5 is concave in the paraxial region.

A focal length of the fifth lens L5 is defined as f5, and the totalfocal length of the camera optical lens 10 is defined as f. The focallength f and the focal length f5 satisfy a following condition:−14.83≤f5/f≤−0.52. The limitation on the fifth lens L5 may make thecamera optical lens have a gentle light angle, thereby reducingtolerance sensitivity. Optionally, the focal length f and the focallength f5 satisfy a following condition: −9.27≤f5/f≤−0.65.

An on-axis thickness of the fifth lens L5 is defined as d9, and a totaloptical length from the object side surface of the first lens to animage plane of the camera optical lens 10 along an optic axis is definedas TTL. The on-axis thickness d9 and the total optical length TTLsatisfy a following condition: 0.03≤d9/TTL≤0.21. Within the range of theabove condition, it is beneficial to achieve an ultra-thinness effect.Optionally, the total optical length TTL and the on-axis thickness d9satisfy a following condition: 0.04≤d9/TTL≤0.17.

In this embodiment, a field of view FOV of the camera optical lens 10 isgreater than or equal to 85°, so that a wide-angle effect may beachieved.

In this embodiment, a total optical length from the object side surfaceof the first lens to an image plane of the camera optical lens 10 alongan optic axis is defined as TTL, and an image height of the cameraoptical lens 10 is defined as IH. The image height IH and the totaloptical length TTL satisfy a following condition: TTL/IH≤1.30. Withinthe range of the condition, it is beneficial to achieve anultra-thinness effect.

In this embodiment, the total focal length of the camera optical lens 10is defined as f, and a combined focal length of the first lens L1 andthe second lens L2 is defined as f12. The focal length f and thecombined focal length f12 satisfy a following condition:0.74≤f12/f≤2.55. Within the range of the above condition, the aberrationand distortion of the camera optical lens 10 may be eliminated, and aback focal length of the camera optical lens 10 may be suppressed, sothat miniaturization of an imaging lens system may be maintained.Optionally, the focal length f and the combined focal length f12 satisfya following condition: 1.19≤f12/f≤2.04.

When the focal length of the camera optical lens 10, the focal lengthand the central curvature radius of each lens according to the presentinvention satisfy the above conditions, the camera optical lens 10 maymeet design requirements for large aperture, wide angle andultra-thinness while maintaining good imaging quality. According toproperties of the camera optical lens 10, the camera optical lens 10 isespecially suitable for mobile phone camera lens components composed ofhigh-pixel CCD, CMOS and other imaging elements and WEB camera lens.

In addition, in the camera optical lens 10 provided by this embodiment,the surface of each lens may be configured to be an aspherical surface.The aspherical surface may be easily made into a shape other than aspherical surface, so that more control variables may be obtained tosubtract aberrations, thereby reducing the number of lens used.Therefore, a total length of the camera optical lens 10 may beeffectively reduced. In this embodiment, each of the object side surfaceand the image side surface of each lens is an aspherical surface.

It is worth mentioning that, since the first lens L1, the second lensL2, the third lens L3, the fourth lens L4, and the fifth lens L5 havethe aforementioned structure and parameter relationship, the cameraoptical lens 10 may appropriately configure the refractive power,spacing and shape of each lens, so that various aberrations arecorrected accordingly.

The camera optical lens 10 of the present invention will be describedbelow with examples. The symbols recorded in each example will bedescribed as follows. The focal length, on-axis distance, centralcurvature radius, on-axis thickness, inflection point position, andarrest point position are each in units of millimeter (mm).

TTL denotes a total optical length from the object side surface of thefirst lens to an image plane Si of the camera optical lens along anoptic axis, with a unit of millimeter (mm);

F number FNO denotes a ratio of an effective focal length of the cameraoptical lens to an entrance pupil diameter.

In addition, at least one of the object side surface and image sidesurface of each lens may also be provided with inflection points and/orarrest points in order to meet high-quality imaging requirements. Thedescription below may be referred to in specific embodiments as follows.

The design data of the camera optical lens 10 in FIG. 1 are shown below.

Table 1 shows the central curvature radius R of the object side surfaceand the image side surface of the first lens L1 to the optical filter GFwhich constitute the camera optical lens 10 according to Embodiment 1 ofthe present invention, the on-axis thickness of each lens, and thedistance d between two adjacent lenses, refractive indexes nd and Abbenumbers vd. It should be noted that R and d are both are each in unit ofmillimeter (mm) in this embodiment.

TABLE 1 R d nd vd S1 ∞   d0 = −0.123 R1 1.370  d1 = 0.453 nd1 1.5444 v155.82 R2 5.857  d2 = 0.068 R3 17.373  d3 = 0.211 nd2 1.6610 v2 20.53 R43.049  d4 = 0.202 R5 3.754  d5 = 0.307 nd3 1.5444 v3 55.82 R6 5.552  d6= 0.428 R7 −3.183  d7 = 0.352 nd4 1.5444 v4 55.82 R8 −2.119  d8 = 0.313R9 1.476  d9 = 0.607 nd5 1.5346 v5 55.69 R10 1.142 d10 = 0.513 R11 ∞ d11= 0.210 ndg 1.5168 vg 64.17 R12 ∞ d12 = 0.594

The reference signs in Table 1 are explained as follows.

S1: aperture;

R: central curvature radius of an optical surface;

R1: central curvature radius of the object side surface of the firstlens L1;

R2: central curvature radius of the image side surface of the first lensL1;

R3: central curvature radius of the object side surface of the secondlens L2;

R4: central curvature radius of the image side surface of the secondlens L2;

R5: central curvature radius of the object side surface of the thirdlens L3;

R6: central curvature radius of the image side surface of the third lensL3;

R7: central curvature radius of the object side surface of the fourthlens L4;

R8: central curvature radius of the image side surface of the fourthlens L4;

R9: central curvature radius of the object side surface of the fifthlens L5;

R10: central curvature radius of the image side surface of the fifthlens L5;

R11: central curvature radius of the object side surface of the opticalfilter GF;

R12: central curvature radius of the image side surface of the opticalfilter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the optical filter GF;

d11: on-axis thickness of the optical filter GF;

d12: on-axis distance from the image side surface of the optical filterGF to the image plane Si;

nd: refractive index of a d-line;

nd1: refractive index of the d-line of the first lens L1;

nd2: refractive index of the d-line of the second lens L2;

nd3: refractive index of the d-line of the third lens L3;

nd4: refractive index of the d-line of the fourth lens L4;

nd5: refractive index of the d-line of the fifth lens L5;

ndg: refractive index of the d-line of the optical filter GF;

vd: Abbe number;

v1: Abbe number of the first lens L1;

v2: Abbe number of the second lens L2;

v3: Abbe number of the third lens L3;

v4: Abbe number of the fourth lens L4;

v5: Abbe number of the fifth lens L5;

vg: Abbe number of the optical filter GF.

Table 2 shows aspherical surface data of each lens in the camera opticallens 10 according to Embodiment 1 of the present invention.

TABLE 2 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1   6.1318E−01 −3.5809E−02   3.7666E−02   1.2305E−01 −6.4115E+00  5.1069E+01 R2   3.5635E+01 −2.1780E−01   1.3479E+00 −1.0872E+01  7.5329E+01 −3.4271E+02 R3 −1.5000E+02 −1.8708E−01   9.5439E−01−8.1870E−01 −7.6456E+00   4.5273E+01 R4   4.0120E+00 −1.1923E−01  3.8317E−01   2.2527E+00 −1.8181E+01   6.8708E+01 R5 −5.9662E+01−1.3110E−01 −5.8805E−01   5.1792E+00 −2.5599E+01   7.8713E+01 R6  8.7841E+00 −2.1522E−01   9.8445E−02 −8.8508E−01   4.2592E+00−1.1534E+01 R7   5.9534E+00 −2.3263E−03   1.0972E−01 −1.0515E+00  2.7170E+00 −3.9458E+00 R8 −1.8971E−02 −1.1830E−01   1.6917E−01−3.1251E−01   4.1735E−01 −2.8660E−01 R9 −2.3187E+00 −3.2390E−01  1.8786E−01 −4.6985E−02 −5.2057E−03   7.2144E−03 R10 −3.0836E+00−1.7624E−01   1.0537E−01 −4.0946E−02   9.1405E−03 −7.0929E−04 Coniccoefficient Aspherical surface coefficient k A14 A16 A18 A20 R1  6.1318E−01 −1.9437E+02   3.9118E+02 −4.0196E+02   1.6590E+02 R2  3.5635E+01   9.3259E+02 −1.4787E+03   1.2692E+03 −4.5959E+02 R3−1.5000E+02 −1.5558E+02   3.2926E+02 −3.6812E+02   1.6323E+02 R4  4.0120E+00 −1.6717E+02   2.6070E+02 −2.2951E+02   8.5107E+01 R5−5.9662E+01 −1.5249E+02   1.7797E+02 −1.1326E+02   3.0190E+01 R6  8.7841E+00   1.8447E+01 −1.7585E+01   9.2626E+00 −2.0196E+00 R7  5.9534E+00   3.4914E+00 −1.8440E+00   5.3400E−01 −6.1985E−02 R8−1.8971E−02   1.1843E−01 −3.6464E−02   8.2272E−03 −8.7428E−04 R9−2.3187E+00 −2.1825E−03   3.3010E−04 −2.5574E−05   8.0636E−07 R10−3.0836E+00 −1.7895E−04   5.4537E−05 −5.6785E−06   2.1637E−07

In Table 2, k denotes a conic coefficient, and A4, A6, A8, A10, A12,A14, A16, A18 and A20 denote an aspherical coefficient, respectively.

y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (6).

Here, x denotes a vertical distance between a point on an asphericalcurve and the optical axis, and y denotes a depth of the asphericalsurface, i.e., a vertical distance between a point on the asphericalsurface having a distance x from the optical axis and a tangent planetangent to a vertex on an aspherical optical axis.

For convenience, the aspherical surface of each lens surface uses theaspherical surface shown in the above formula (6). However, the presentinvention is not limited to the aspherical polynomial form shown in theformula (6).

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 10 according to Embodiment 1 of the presentinvention are shown in Tables 3 and 4. Here, P1R1 and P1R2 denote theobject side surface and image side surface of the first lens L1,respectively. P2R1 and P2R2 denote the object side surface and imageside surface of the second lens L2, respectively. P3R1 and P3R2 denotethe object side surface and image side surface of the third lens L3,respectively. P4R1 and P4R2 denote the object side surface and imageside surface of the fourth lens L4, respectively. P5R1 and P5R2 denotethe object side surface and image side surface of the fifth lens L5,respectively. Data in an “inflection point position” column are avertical distance from an inflexion point provided on a surface of eachlens to the optical axis of the camera optical lens 10. Data in an“arrest point position” column are a vertical distance from an arrestpoint provided on the surface of each lens to the optical axis of thecamera optical lens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion Inflexion Inflexioninflexion point point point point point points position 1 position 2position 3 position 4 position 5 P1R1 0 / / / / / P1R2 1 0.495 / / / /P2R1 1 0.725 / / / / P2R2 0 / / / / / P3R1 2 0.295 0.835 / / / P3R2 20.275 0.895 / / / P4R1 2 1.045 1.175 / / / P4R2 2 0.965 1.225 / / / P5R15 0.455 1.745 2.005 2.145 2.325 P5R2 2 0.605 2.605 / / /

TABLE 4 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 1 0.695 / P2R1 0 / / P2R2 0 / / P3R1 1 0.535/ P3R2 2 0.475 0.975 P4R1 0 / / P4R2 0 / / P5R1 1 0.995 / P5R2 1 1.535 /

In addition, Table 17 below shows numerical values according toEmbodiments 1, 2, 3 and 4 corresponding to the parameters specified inthe conditions.

As shown in Table 17, Embodiment 1 satisfies various conditions.

FIG. 2 and FIG. 3 are schematic diagrams of a longitudinal aberrationand a lateral color of the camera optical lens 10 after light having awavelength of 650 nm, 610 nm, 550 nm, 510 nm, 470 nm and 435 nm passesthrough the camera optical lens 10, respectively. FIG. 4 is a schematicdiagram of a field curvature and a distortion of the camera optical lens10 after light having a wavelength of 550 nm passes through the cameraoptical lens 10. The field curvature S in FIG. 4 is a field curvature ina sagittal direction, and T is a field curvature in a meridiandirection.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 10 is 1.410 mm, a full-field image height IH is 3.282 mm,and a field of view FOV in a diagonal direction is 85.40°. The cameraoptical lens 10 satisfies design requirements for wide angle andultra-thinness. The on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical performances.

Embodiment 2

FIG. 5 is a structural schematic diagram of the camera optical lens 20according to Embodiment 2. Embodiment 2 is basically the same asEmbodiment 1, and involves symbols having the same meanings asEmbodiment 1 which are not elaborated here, and only differencestherebetween are listed below.

Design data of the camera optical lens 20 according to Embodiment 2 ofthe present invention are shown in Table 5 and Table 6.

TABLE 5 R d nd vd S1 ∞   d0 = −0.139 R1 1.533  d1 = 0.538 nd1 1.5444 v155.82 R2 42.989  d2 = 0.043 R3 25.303  d3 = 0.214 nd2 1.6610 v2 20.53 R43.196  d4 = 0.237 R5 4.144  d5 = 0.288 nd3 1.5444 v3 55.82 R6 4.388  d6= 0.343 R7 −4.295  d7 = 0.645 nd4 1.5444 v4 55.82 R8 −1.228  d8 = 0.548R9 5.120  d9 = 0.355 nd5 1.5346 v5 55.69 R10 1.086 d10 = 0.513 R11 ∞ d11= 0.210 ndg 1.5168 vg 64.17 R12 ∞ d12 = 0.310

Table 6 shows aspherical surface data of each lens in the camera opticallens 20 according to Embodiment 2 of the present invention.

TABLE 6 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1   5.0567E−01 −4.5614E−02   2.5056E−02   8.7818E−02 −6.4112E+00  5.1141E+01 R2 −1.8000E+02 −2.3501E−01   1.3769E+00 −1.0802E+01  7.5276E+01 −3.4297E+02 R3   1.0875E+02 −1.6690E−01   1.0062E+00−8.0613E−01 −7.7175E+00   4.5075E+01 R4   5.8771E+00 −8.3895E−02  3.3385E−01   2.2844E+00 −1.8126E+01   6.8656E+01 R5 −7.6023E+01−1.8506E−01 −6.0915E−01   5.2136E+00 −2.5561E+01   7.8740E+01 R6  4.4741E+00 −2.2797E−01   8.4484E−02 −8.8349E−01   4.2661E+00−1.1526E+01 R7   7.5782E+00 −1.7970E−02   1.6955E−01 −1.0567E+00  2.7071E+00 −3.9513E+00 R8 −1.4310E+00 −2.2751E−02   1.1987E−01−3.1271E−01   4.2012E−01 −2.8568E−01 R9 −1.5849E+02 −3.0561E−01  1.8874E−01 −4.7027E−02 −5.2210E−03   7.2120E−03 R10 −5.7213E+00−1.6957E−01   1.0417E−01 −4.0888E−02   9.1466E−03 −7.0907E−04 Coniccoefficient Aspherical surface coefficient k A14 A16 A18 A20 R1  5.0567E−01 −1.9428E+02   3.9111E+02 −4.0232E+02   1.6611E+02 R2−1.8000E+02   9.3225E+02 −1.4788E+03   1.2700E+03 −4.5784E+02 R3  1.0875E+02 −1.5588E+02   3.2907E+02 −3.6773E+02   1.6507E+02 R4  5.8771E+00 −1.6739E+02   2.6041E+02 −2.2953E+02   8.5962E+01 R5−7.6023E+01 −1.5247E+02   1.7797E+02 −1.1326E+02   3.0319E+01 R6  4.4741E+00   1.8449E+01 −1.7589E+01   9.2530E+00 −2.0309E+00 R7  7.5782E+00   3.4887E+00 −1.8453E+00   5.3309E−01 −6.2796E−02 R8−1.4310E+00   1.1858E−01 −3.6464E−02   8.1977E−03 −9.0338E−04 R9−1.5849E+02 −2.1828E−03   3.3009E−04 −2.5569E−05   8.0839E−07 R10−5.7213E+00 −1.7892E−04   5.4540E−05 −5.6786E−06   2.1624E−07

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 20 are shown in Tables 7 and 8.

TABLE 7 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 1 0.695 / P1R2 1 0.105 / P2R1 0 / / P2R2 0 // P3R1 2 0.255 0.775 P3R2 2 0.305 0.915 P4R1 1 1.145 / P4R2 2 0.9351.305 P5R1 2 0.205 1.365 P5R2 2 0.495 2.585

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 1 0.175 / P2R1 0 / / P2R2 0 / / P3R1 2 0.4550.855 P3R2 2 0.515 1.005 P4R1 0 / / P4R2 0 / / P5R1 1 0.365 / P5R2 11.265 /

In addition, Table 17 below shows numerical values according toEmbodiment 2 corresponding to the parameters specified in theconditions. It is appreciated that the camera optical lens of Embodiment2 satisfies the above conditions.

FIG. 6 and FIG. 7 are schematic diagrams of a longitudinal aberrationand a lateral color of the camera optical lens 20 after light having awavelength of 650 nm, 610 nm, 550 nm, 510 nm, 470 nm and 435 nm passesthrough the camera optical lens 20, respectively. FIG. 8 is a schematicdiagram of a field curvature and a distortion of the camera optical lens20 after light having a wavelength of 550 nm passes through the cameraoptical lens 20. The field curvature S in FIG. 8 is a field curvature ina sagittal direction, and T is a field curvature in a meridiandirection.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 20 is 1.389 mm, a full-field image height IH is 3.282 mm,and a field of view FOV in a diagonal direction is 86.10°. The cameraoptical lens 20 satisfies design requirements for wide angle andultra-thinness. The on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical performances.

Embodiment 3

FIG. 9 is a structural schematic diagram of the camera optical lens 30according to Embodiment 3. Embodiment 3 is basically the same asEmbodiment 1, and involves symbols having the same meanings asEmbodiment 1 which are not elaborated here, and only differencestherebetween are listed below.

Design data of the camera optical lens 30 of Embodiment 3 of the presentinvention are shown in Table 9 and Table 10.

TABLE 9 R d nd vd S1 ∞   d0 = −0.108 R1 1.532  d1 = 0.498 nd1 1.5444 v155.82 R2 5.626  d2 = 0.058 R3 201.854  d3 = 0.213 nd2 1.6610 v2 20.53 R46.313  d4 = 0.229 R5 3.313  d5 = 0.305 nd3 1.5444 v3 55.82 R6 3.449  d6= 0.405 R7 −5.062  d7 = 0.438 nd4 1.5444 v4 55.82 R8 −1.459  d8 = 0.613R9 1.038  d9 = 0.227 nd5 1.5346 v5 55.69 R10 0.620 d10 = 0.513 R11 ∞ d11= 0.210 ndg 1.5168 vg 64.17 R12 ∞ d12 = 0.424

Table 10 shows aspherical surface data of each lens in the cameraoptical lens 30 of Embodiment 3 of the present invention.

TABLE 10 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1   4.9568E−01 −4.4253E−02   1.8764E−02   7.5777E−02 −6.4180E+00  5.1227E+01 R2 −2.8271E+01 −2.3682E−01   1.2926E+00 −1.0892E+01  7.5413E+01 −3.4300E+02 R3 −1.8001E+02 −1.7282E−01   9.4843E−01−8.6534E−01 −7.6741E+00   4.5318E+01 R4   8.8929E+00 −8.6372E−02  3.8808E−01   2.2298E+00 −1.8204E+01   6.8637E+01 R5 −4.4065E+01−1.4633E−01 −6.0441E−01   5.1860E+00 −2.5586E+01   7.8725E+01 R6  5.8940E+00 −2.3089E−01   1.0225E−01 −8.8688E−01   4.2671E+00−1.1524E+01 R7   9.3299E+00 −3.4219E−02   1.7427E−01 −1.0534E+00  2.7058E+00 −3.9534E+00 R8 −1.1759E+00 −2.3652E−02   1.2976E−01−3.1501E−01   4.1874E−01 −2.8611E−01 R9 −1.8545E+01 −3.1935E−01  1.8869E−01 −4.6907E−02 −5.2067E−03   7.2134E−03 R10 −6.0179E+00−1.6911E−01   1.0429E−01 −4.0954E−02   9.1414E−03 −7.0927E−04 Coniccoefficient Aspherical surface coefficient k A14 A16 A18 A20 R1  4.9568E−01 −1.9434E+02   3.9078E+02 −4.0142E+02   1.6506E+02 R2−2.8271E+01   9.3237E+02 −1.4779E+03   1.2693E+03 −4.5862E+02 R3−1.8001E+02 −1.5584E+02   3.2892E+02 −3.6661E+02   1.6352E+02 R4  8.8929E+00 −1.6746E+02   2.6059E+02 −2.2855E+02   8.4691E+01 R5−4.4065E+01 −1.5248E+02   1.7789E+02 −1.1361E+02   3.0454E+01 R6  5.8940E+00   1.8444E+01 −1.7602E+01   9.2414E+00 −2.0255E+00 R7  9.3299E+00   3.4876E+00 −1.8456E+00   5.3321E−01 −6.2642E−02 R8−1.1759E+00   1.1850E−01 −3.6458E−02   8.2135E−03 −8.9828E−04 R9−1.8545E+01 −2.1828E−03   3.3006E−04 −2.5578E−05   8.0808E−07 R10−6.0179E+00 −1.7892E−04   5.4544E−05 −5.6776E−06   2.1645E−07

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 30 are shown in Table 11 and Table 12.

TABLE 11 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 1 0.685 / P1R2 1 0.345 / P2R1 2 0.055 0.315P2R2 0 / / P3R1 1 0.305 / P3R2 2 0.355 0.935 P4R1 1 1.165 / P4R2 2 0.9351.195 P5R1 2 0.285 1.565 P5R2 1 0.425 /

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 1 0.535 / P2R1 2 0.085 0.435 P2R2 0 / / P3R11 0.535 / P3R2 1 0.605 / P4R1 0 / / P4R2 0 / / P5R1 1 0.625 / P5R2 11.295 /

In addition, Table 17 below shows numerical values according toEmbodiment 3 corresponding to the parameters specified in theconditions. It is appreciated that the camera optical lens of Embodiment3 satisfies the above conditions.

FIG. 10 and FIG. 11 are schematic diagrams of a longitudinal aberrationand a lateral color of the camera optical lens 30 after light having awavelength of 650 nm, 610 nm, 550 nm, 510 nm, 470 nm and 435 nm passesthrough the camera optical lens 30, respectively. FIG. 12 is a schematicdiagram of a field curvature and a distortion of the camera optical lens30 after light having a wavelength of 550 nm passes through the cameraoptical lens 20. The field curvature S in FIG. 12 is a field curvaturein a sagittal direction, and T is a field curvature in a meridiandirection.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 30 is 1.382 mm, a full-field image height IH is 3.282 mm,and a field of view FOV in a diagonal direction is 87.40°. The cameraoptical lens 30 satisfies design requirements for large aperture, wideangle and ultra-thinness. The on-axis and off-axis chromatic aberrationsare fully corrected, thereby achieving excellent optical performances.

Embodiment 4

FIG. 13 is a structural schematic diagram of the camera optical lens 40according to Embodiment 4. Embodiment 4 is basically the same asEmbodiment 1, and involves symbols having the same meanings asEmbodiment 1 which are not elaborated here, and only differencestherebetween are listed below.

Design data of the camera optical lens 40 of Embodiment 4 of the presentinvention are shown in Table 13 and Table 14.

TABLE 13 R d nd vd S1 ∞   d0 = −0.088 R1 1.492  d1 = 0.433 nd1 1.5444 v155.82 R2 9.567  d2 = 0.068 R3 8.606  d3 = 0.215 nd2 1.6610 v2 20.53 R42.827  d4 = 0.266 R5 4.150  d5 = 0.295 nd3 1.5444 v3 55.82 R6 4.445  d6= 0.425 R7 −4.125  d7 = 0.503 nd4 1.5444 v4 55.82 R8 −1.248  d8 = 0.476R9 2.182  d9 = 0.378 nd5 1.5346 v5 55.69 R10 0.852 d10 = 0.513 R11 ∞ d11= 0.210 ndg 1.5168 vg 64.17 R12 ∞ d12 = 0.403

Table 14 shows aspherical surface data of each lens in the cameraoptical lens 40 according to Embodiment 4 of the present invention.

TABLE 14 Conic coefficient Aspherical surface coefficient k A4 A6 A8 A10A12 R1   4.8019E−01 −4.7469E−02   3.3704E−02   7.8691E−02 −6.4864E+00  5.1039E+01 R2 −1.7835E+01 −2.3328E−01   1.3090E+00 −1.0871E+01  7.5416E+01 −3.4260E+02 R3 −1.3944E+02 −1.7382E−01   9.5576E−01−8.3537E−01 −7.6669E+00   4.5300E+01 R4   4.3911E+00 −1.1157E−01  3.8491E−01   2.2244E+00 −1.8236E+01   6.8673E+01 R5 −5.4312E+01−1.8076E−01 −5.8404E−01   5.2422E+00 −2.5564E+01   7.8693E+01 R6  5.1515E+00 −2.3024E−01   9.6966E−02 −8.7555E−01   4.2656E+00−1.1533E+01 R7   7.0412E+00 −8.2957E−03   1.6054E−01 −1.0565E+00  2.7090E+00 −3.9503E+00 R8 −1.3527E+00 −2.1328E−02   1.2222E−01−3.1240E−01   4.2001E−01 −2.8580E−01 R9 −3.7975E+01 −3.0718E−01  1.8865E−01 −4.7018E−02 −5.2173E−03   7.2130E−03 R10 −5.2108E+00−1.7116E−01   1.0425E−01 −4.0877E−02   9.1472E−03 −7.0914E−04 Coniccoefficient Aspherical surface coefficient k A14 A16 A18 A20 R1  4.8019E−01 −1.9424E+02   3.9152E+02 −4.0167E+02   1.6491E+02 R2−1.7835E+01   9.3255E+02 −1.4790E+03   1.2690E+03 −4.5770E+02 R3−1.3944E+02 −1.5543E+02   3.2956E+02 −3.6785E+02   1.6282E+02 R4  4.3911E+00 −1.6711E+02   2.6092E+02 −2.2930E+02   8.4507E+01 R5−5.4312E+01 −1.5255E+02   1.7791E+02 −1.1326E+02   3.0323E+01 R6  5.1515E+00   1.8441E+01 −1.7595E+01   9.2502E+00 −2.0313E+00 R7  7.0412E+00   3.4888E+00 −1.8456E+00   5.3275E−01 −6.2941E−02 R8−1.3527E+00   1.1852E−01 −3.6487E−02   8.2002E−03 −8.9169E−04 R9−3.7975E+01 −2.1827E−03   3.3010E−04 −2.5571E−05   8.0717E−07 R10−5.2108E+00 −1.7894E−04   5.4539E−05 −5.6781E−06   2.1641E−07

Design data of the inflection point and the arrest point of each lens inthe camera optical lens 40 are shown in Tables 15 and 16.

TABLE 15 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 1 0.695 / / P1R21 0.255 / / P2R1 0 / / / P2R2 0 / / / P3R1 2 0.275 0.815 / P3R2 2 0.2950.935 / P4R1 1 1.175 / / P4R2 3 0.925 1.305 1.425 P5R1 2 0.275 1.385 /P5R2 2 0.485 2.475 /

TABLE 16 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 1 0.475 / P2R1 0 / / P2R2 0 / / P3R1 2 0.4850.895 P3R2 2 0.515 1.035 P4R1 0 / / P4R2 0 / / P5R1 2 0.525 2.275 P5R2 11.315 /

In addition, Table 17 below shows numerical values according toEmbodiment 4 corresponding to the parameters specified in theconditions. It is appreciated that the camera optical lens of Embodiment4 satisfies the above conditions.

FIG. 14 and FIG. 15 are schematic diagrams of a longitudinal aberrationand a lateral color of the camera optical lens 40 after light having awavelength of 650 nm, 610 nm, 550 nm, 510 nm, 470 nm and 435 nm passesthrough the camera optical lens 40, respectively. FIG. 16 is a schematicdiagram of a field curvature and a distortion of the camera optical lens40 after light having a wavelength of 550 nm passes through the cameraoptical lens 40. The field curvature S in FIG. 16 is a field curvaturein a sagittal direction, and T is a field curvature in a meridiandirection.

In this embodiment, an entrance pupil diameter ENPD of the cameraoptical lens 40 is 1.393 mm, a full-field image height IH is 3.282 mm,and a field of view FOV in a diagonal direction is 86.00°. The cameraoptical lens 40 satisfies design requirements for wide angle andultra-thinness. The on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical performances.

TABLE 17 Parameters and Embodi- Embodi- Embodi- Embodi- conditions ment1 ment 2 ment 3 ment 4 f1/f 0.92 0.85 1.09 0.93 f2/f −1.61 −1.62 −2.88−1.88 (R5 + R6)/(R5 − R6) −5.18 −34.97 −49.72 −29.14 R7/R8 1.50 3.503.47 3.31 d7/d8 1.13 1.18 0.72 1.06 f 3.454 3.403 3.385 3.412 f1 3.1602.896 3.692 3.175 f2 −5.571 −5.499 −9.763 −6.399 f3 20.000 96.073 85.93484.556 f4 10.383 2.928 3.595 3.084 f5 −25.605 −2.648 −3.550 −2.892 f125.864 5.050 5.393 5.329 FNO 2.45 2.45 2.45 2.45 TTL 4.258 4.244 4.1334.185 FOV 85.40° 86.10° 87.40° 86.00° IH 3.282 3.282 3.282 3.282

The above are only preferred embodiments of the present disclosure.Here, it should be noted that those skilled in the art may makemodifications without departing from the inventive concept of thepresent disclosure, but these shall fall into the protection scope ofthe present disclosure.

What is claimed is:
 1. A camera optical lens, comprising from an objectside to an image side: a first lens having positive refractive power; asecond lens having negative refractive power; a third lens havingpositive refractive power; a fourth lens having positive refractivepower; and a fifth lens having negative refractive power; wherein thecamera optical lens satisfies following conditions: 0.85≤f1/f≤1.10;−3.00≤f2/f≤−1.50; −50.00≤(R5+R6)/(R5−R6)≤−5.00; 1.50≤R7/R8≤3.50; and0.70≤d7/d8≤1.20, where f denotes a total focal length of the cameraoptical lens, f1 denotes a focal length of the first lens; f2 denotes afocal length of the second lens; d7 denotes an on-axis thickness of thefourth lens; d8 denotes an on-axis distance from an image side surfaceof the fourth lens to an object side surface of the fifth lens; R5denotes a central curvature radius of an object side surface of thethird lens; R6 denotes a central curvature radius of an image sidesurface of the third lens; R7 denotes a central curvature radius of anobject side surface of the fourth lens; and R8 denotes a centralcurvature radius of the image side surface of the fourth lens.
 2. Thecamera optical lens as described in claim 1, wherein the camera opticallens further satisfies a following condition:1.50≤(R9+R10)/(R9−R10)≤8.00, where R9 denotes a central curvature radiusof the object side surface of the fifth lens; and R10 denotes a centralcurvature radius of an image side surface of the fifth lens.
 3. Thecamera optical lens as described in claim 1, wherein the camera opticallens further satisfies following conditions:−3.50≤(R1+R2)/(R1−R2)≤−0.72; and 0.05≤d1/TTL≤0.19, where R1 denotes acentral curvature radius of an object side surface of the first lens; R2denotes a central curvature radius of an image side surface of the firstlens; d1 denotes an on-axis thickness of the first lens; and TTL denotesa total optical length from an object side surface of the first lens toan image plane of the camera optical lens along an optic axis.
 4. Thecamera optical lens as described in claim 1, wherein the camera opticallens further satisfies following conditions: 0.53≤(R3+R4)/(R3−R4)≤2.97;and 0.02≤d3/TTL≤0.08, where R3 denotes a central curvature radius of anobject side surface of the second lens; R4 denotes a central curvatureradius of an image side surface of the second lens; d3 denotes anon-axis thickness of the second lens; and TTL denotes a total opticallength from an object side surface of the first lens to an image planeof the camera optical lens along an optic axis.
 5. The camera opticallens as described in claim 1, wherein the camera optical lens furthersatisfies following conditions: 2.90≤f3/f≤42.35; and 0.03≤d5/TTL≤0.11,where f3 denotes a focal length of the third lens; d5 denotes an on-axisthickness of the third lens; and TTL denotes a total optical length froman object side surface of the first lens to an image plane of the cameraoptical lens along an optic axis.
 6. The camera optical lens asdescribed in claim 1, wherein the camera optical lens further satisfiesfollowing conditions: 0.43≤f4/f≤4.51; 0.90≤(R7+R8)/(R7−R8)≤7.47; and0.04≤d7/TTL≤0.23, where f4 denotes a focal length of the fourth lens;and TTL denotes a total optical length from an object side surface ofthe first lens to an image plane of the camera optical lens along anoptic axis.
 7. The camera optical lens as described in claim 1, whereinthe camera optical lens further satisfies following conditions:−14.83≤f5/f≤−0.52; and 0.03≤d9/TTL≤0.21, where f5 denotes a focal lengthof the fifth lens; d9 denotes an on-axis thickness of the fifth lens;and TTL denotes a total optical length from an object side surface ofthe first lens to an image plane of the camera optical lens along anoptic axis.
 8. The camera optical lens as described in claim 1, whereinthe camera optical lens further satisfies a following condition:TTL/IH≤1.30, where IH denotes an image height of the camera opticallens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 9. The camera optical lens as described in claim 1, whereinthe camera optical lens further satisfies a following condition:FOV≥85°, where FOV denotes a field of view of the camera optical lens.10. The camera optical lens as described in claim 1, wherein the cameraoptical lens further satisfies a following condition: 0.74≤f12/f≤2.55,where f12 denotes a combined focal length of the first lens and thesecond lens.